media: mtk-vcodec: Add missing of_node_put() in mtk_vdec_hw_prob_done()

of_find_compatible_node() will increment the refcount of the returned
device_node. Calling of_node_put() to avoid the refcount leak.

Link: https://lore.kernel.org/linux-media/20220316123452.186166-1-wangxiongfeng2@huawei.comSigned-off-by: Xiongfeng Wang <wangxiongfeng2@huawei.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>

drivers/media/platform/mediatek/vcodec/mtk_vcodec_dec_hw.c

@@ -47,6 +47,8 @@ static int mtk_vdec_hw_prob_done(struct mtk_vcodec_dev *vdec_dev)
 		if (!subdev_node)
 			continue;
 
+		of_node_put(subdev_node);
+
 		hw_idx = (enum mtk_vdec_hw_id)(uintptr_t)of_id->data;
 		if (!test_bit(hw_idx, vdec_dev->subdev_bitmap)) {
 			dev_err(&pdev->dev, "vdec %d is not ready", hw_idx);